Douglas Harbour [cartographic material] /

Topographic map of Douglas Harbour Region, Papua New Guinea showing trig stations, astronomical stations, native gardens and villages and unidentified native villages, tracks, canoe route, sea plane base and mission stations. Relief shown by contours.; "Air photography: 8th Photo Squadron, 5th Air Force ..."; "Officers using this map are requested to make any necessary additions or amendments on the map itself and forward to A.D. Survey H.Q. N.G.F."; "Netherlands East Indies Grid Southern New Guinea Zone."; "L.H.Q./010/1688."; Includes index to adjoining sheets and reliability diagram.; Also available in an electronic version via the internet at: http://nla.gov.au/nla.map-vn5044691.Refer to this map as: No. 1688 Douglas Harbour 1 inch serie